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| 型號： | NSC800V |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | NSC800TM High-Performance Low-Power CMOS Microprocessor |
| 中文描述： | NSC800TM高性能低功耗CMOS微處理器 |
| 文件頁數(shù)： | 44/76頁 |
| 文件大小： | 785K |
| 代理商： | NSC800V |
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12.7 16-Bit Arithmetic
(Continued)
DEC
rr
Decrement the contents of the 16-bit register rr.
rr
w
rr
b
1
7
6
5
4
3
2
1
No flags affected
0
DEC BC
DEC DE
DEC HL
DEC SP
0
0
rp
1
0
1
1
Timing:
M cycles D 1
T states D 6
Addressing Mode:
7
6
Register
0
5
4
3
2
1
DEC IX (for N
X
e
0)
1
1
N
X
1
1
1
0
1
DEC IY (for N
X
e
1)
0
0
1
0
1
0
1
1
Timing:
M cycles D 2
T states D 10 (4, 6)
Addressing Mode:
Register
12.8 Bit Set, Reset, and Test
REGISTER
SET
b, r
Bit b in register r is set.
R
b
w
1
7
6
5
No flags affected
0
4
3
2
1
1
1
0
0
1
0
1
1
1
1
b
r
Timing:
M cycles D 2
T states D 8 (4, 4)
Addressing Mode:
Bit/Register
RES
b, r
Bit b in register r is reset.
r
b
w
0
7
6
5
No flags affected
0
4
3
2
1
1
1
0
0
1
0
1
1
1
0
b
r
Timing:
M cycles D 2
T states D 8 (4, 4)
Addressing Mode:
Bit/Register
BIT
b, r
Bit b in register r is tested with the result put in the Z flag.
Z
w
r
b
S: Undefined
Z: Inverse of tested bit
H: Set
P/V: Undefined
N: Reset
C: N/A
7
6
5
4
3
2
1
0
1
1
0
0
1
0
1
1
0
1
b
r
Timing:
M cycles D 2
T states D 8 (4, 4)
Addressing Mode:
Bit/Register
MEMORY
SET
b, m
1
Bit b in memory location m
1
is set.
m
1b
w
1
7
6
5
4
3
No flags affected
0
2
1
1
1
0
0
1
0
1
1
SET b, (HL)
1
1
b
1
1
0
Timing:
M cycles D 4
T states D 15 (4, 4, 4, 3)
Addressing Mode:
7
6
5
Bit/Register Indirect
4
3
2
1
0
SET b, (IX
a
d) (for N
X
e
0)
1
1
N
X
1
1
1
0
1
SET b, (IY
a
d) (for N
X
e
1)
1
1
0
0
1
0
1
1
d
1
1
b
1
1
0
Timing:
M cycles D 6
T states D 23 (4, 4, 3, 5, 4, 3)
Addressing Mode:
Bit/Indexed
RES
b, m
1
Bit b in memory location m
1
is reset.
m
1b
w
0
7
6
5
4
3
No flags affected
0
2
1
1
1
0
0
1
0
1
1
RES b, (HL)
1
0
b
1
1
0
Timing:
M cycles D 4
T states D 15 (4, 4, 4, 3)
Addressing Mode:
7
6
5
Bit/Register Indirect
4
3
2
1
0
RES b, (IX
a
d) (for N
X
e
0)
1
1
N
X
1
1
1
0
1
RES b, (IY
a
d) (for N
X
e
1)
1
1
0
0
1
0
1
1
d
1
0
b
1
1
0
Timing:
M cycles D 6
T states D 23 (4, 4, 3, 5, 4, 3)
Addressing Mode:
Bit/Indexed
44
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相關(guān)代理商/技術(shù)參數(shù) |
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| NSC800V-1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microprocessor |
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| NSC810AD/B | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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